Topic
Parametric oscillator
About: Parametric oscillator is a research topic. Over the lifetime, 5836 publications have been published within this topic receiving 95631 citations. The topic is also known as: Parametric excitation.
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TL;DR: In this paper, the authors calculate analytically the squeezing spectra of the signal and pump fields in a degenerate optical parametric oscillator for arbitrary values of the detuning parameters.
Abstract: The authors calculate analytically the squeezing spectra of the signal and pump fields in a degenerate optical parametric oscillator for arbitrary values of the detuning parameters. For this purpose they use the recently introduced semi-classical method as well as the standard quantum approach.
69 citations
Patent•
12 Jun 2001TL;DR: In this paper, a tunable optical pre-selector is adjusted in response to a measure of the frequency of the swept local oscillator signal and after a portion of the SWO has optically interacted with the optical preselector.
Abstract: An optical heterodyne detection system includes a tunable optical pre-selector that is adjusted to track the frequency of a swept local oscillator signal. The tunable optical pre-selector is adjusted in response to a measure of the frequency of the swept local oscillator signal and in response to a measure of a portion of the swept local oscillator signal after the portion of the swept local oscillator signal has optically interacted with the optical pre-selector. In an embodiment, at least some portion of the swept local oscillator signal is modulated before it interacts with the optical pre-selector. In an embodiment, the portion of the swept local oscillator signal that interacts with the pre-selector is detected and used in a feedback control circuit to generate a control signal which causes the error between the center frequency of the pre-selector and the frequency of the swept local oscillator signal to be small.
69 citations
TL;DR: In this paper, the frequency doubled output train from an actively mode-locked and Q-switched Nd:YAG laser was used to produce broadly tunable pulses (0.68 to 2.4µm) with peak idler powers of up to 1.6MW.
69 citations
TL;DR: In this article, the authors considered a quantum beat laser as a source of entangled radiation, which consists of three level atoms inside a doubly resonant cavity such that coherence is introduced by driving the upper two levels with a strong classical field of Rabi frequency.
Abstract: We consider a quantum beat laser [Scully and Zubairy, Phys. Rev. A 35 752 (1987)] as a source of entangled radiation. The system essentially consists of three-level atoms inside a doubly resonant cavity such that coherence is introduced by driving the upper two levels with a strong classical field of Rabi frequency $\ensuremath{\Omega}$. We study the dynamics of this system for different values of Rabi frequencies in the presence of cavity losses. It is shown that entanglement can be generated in this system for different initial states of the field in the two modes.
69 citations
TL;DR: In this article, the operation of a picosecond synchronously intracavity pumped optical parametric oscillator (OPO) was reported. But the active medium of the pump cavity is a diode pumped passively mode-locked Nd:YVO4 crystal.
Abstract: The operation of a picosecond synchronously intracavity pumped optical parametric oscillator (OPO) is reported. A magnesium doped lithium niobate crystal (MgO:PPLN), periodically poled, is used as the optical parametric oscillator crystal coupling the pump and the resonant signal cavities. The active medium of the pump cavity is a a diode pumped passively mode-locked Nd:YVO4 crystal. Continuous mode-locked operation was achieved, tunable from 1531 to 1554 nm by adjusting the OPO crystal from 31 to 55°C. The spectral width of the generated radiation was 2 nm.
69 citations